function doListmenu(){
	var PREFER = document.getElementById("PREFER");
	//var levelid = document.getElementById("POSID");
	if(!PREFER){
		return;
	}
	var str = "PREFER=" + PREFER.value ;
	//alert(str);
	postRequest('ebsrvtree_ajax.php',str,'content');
}

function checkChange(chk){
	var PREFER = document.getElementById("PREFER");
	//var levelid = document.getElementById("POSID");
	if(!PREFER){
		return;
	}
	var str = "PREFER=" + PREFER.value ;
	str+= "&chk=" + chk;
	//alert(str);
	postRequest('ebsrvtree_prefer_ajax.php',str,'prefer_ajax');
}